25953340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 64465632

約数和(自身を除く): 38512292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 373, 490, 497, 710, 746, 980, 994, 1420, 1492, 1865, 1988, 2485, 2611, 3479, 3730, 4970, 5222, 6958, 7460, 9940, 10444, 13055, 13916, 17395, 18277, 26110, 26483, 34790, 36554, 52220, 52966, 69580, 73108, 91385, 105932, 132415, 182770, 185381, 264830, 365540, 370762, 529660, 741524, 926905, 1297667, 1853810, 2595334, 3707620, 5190668, 6488335, 12976670, 25953340]

約数ペア:

[(1, 25953340), (2, 12976670), (4, 6488335), (5, 5190668), (7, 3707620), (10, 2595334), (14, 1853810), (20, 1297667), (28, 926905), (35, 741524), (49, 529660), (70, 370762), (71, 365540), (98, 264830), (140, 185381), (142, 182770), (196, 132415), (245, 105932), (284, 91385), (355, 73108), (373, 69580), (490, 52966), (497, 52220), (710, 36554), (746, 34790), (980, 26483), (994, 26110), (1420, 18277), (1492, 17395), (1865, 13916), (1988, 13055), (2485, 10444), (2611, 9940), (3479, 7460), (3730, 6958), (4970, 5222)]